Method for injecting surface discharge active material to oxidized ammonium sulfite or ammonium nitrite

Abstract

The invention provides a method for injecting a surface discharge active material to oxidized ammonium sulfite or ammonium nitrite. The method for injecting the surface discharge active material to oxidized ammonium sulfite or ammonium nitrite is characterized in that: in a wet desulphurization and denitration process of fire coal or fuel oil, sulfite or nitrite generated by absorbing SO2 or NOx in the gas through aqueous alkali is collected into a reaction tank, a gaseous-phase surface discharge system is placed in the reaction tank of ammonium sulfite or ammonium nitrite, oxygen-contained gas enters one end (called inlet) of the surface discharge system, is changed into active gas containing active materials, such as ozone, atomic oxygen, etc., and then injected to a solution in the reaction tank by a sprayer on the other end (called outlet) of the surface discharge system, the ammonium sulfite or ammonium nitrite in the solution is oxidized to ammonium sulfate or ammonium nitrate by the active materials as raw materials of chemical fertilizers. The method has the characteristics of high oxidation rate and efficiency of the ammonium sulfite or ammonium nitrite, high utilization efficiency of gas and energy saving.

Description

technical field [0001] The invention relates to a method for injecting oxidized ammonium sulfite or ammonium nitrite into surface discharge active substances, and belongs to the fields of coal-fired flue gas pollutant control and chemical fertilizer and chemical production. Background technique [0002] Sulfur dioxide (SO2) is produced during the combustion of fossil fuels such as coal and oil 2 ) and nitrogen oxides (NOx) and other acidic gaseous pollutants, causing atmospheric environmental pollution. Therefore, the research and development of coal-fired flue gas desulfurization and denitrification technology has attracted widespread attention. At present, the desulfurization and denitrification technology of coal-fired flue gas in industry is mainly wet method, that is, the use of alkaline substances, such as calcium oxide, calcium hydroxide, magnesium oxide, magnesium hydroxide, ammonia (including ammonia water) or sodium hydroxide, etc., to prepare Alkaline absorption ...

AI Technical Summary

Problems solved by technology

The core method is to use the radiation beam source to realize the oxidation of ammonium sulfite, and there is a problem that the radiation beam source generation technology is complicated.

Images